Derek Elkins wrote:
> Both are poorish style.
>> reader <- forkIO $ forever $ do (nr', line) <- readChan; when (nr /= nr') $ putStrLn hdl line
This is fine assuming you always want to re-enter the loop. If you want
to loop conditionally (which is most often the case), forever isn't
going to work, unless you use exceptions.
Martijn.